Each pressure vessel that we manufacture is per the American Society of Mechanical Engineers (ASME) code. As a leading ASME pressure vessels manufacturer, our specialty lies in working with a variety of alloys, pressures, & designs to meet your custom requirements.
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Our weld overlay and clad vessels are fully code-compliant. We use our advanced welding techniques to their full capabilities to offer you the finest overlay/clad components and pressure vessels.
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We hold the American Society of Mechanical Engineers (ASME) U, U2, and U3 stamps, and have the capabilities and resources to manufacture ASME high pressure vessel to your exacting specifications.
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We specialize in the design, engineering, and fabrication of Shell and Tube Heat Exchangers, including thermal calculations. All of our units are built in strict accordance with the latest edition and addenda of the A.S.M.E. Code, Section VIII Division 1, 2, or 3 and T.E.M.A.”
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Pressure Vessels – Market Served

Pressure vessels are air tight containers specially designed for dispensing, mixing, storing and transporting corrosive or highly flammable liquids and gases under pressure. Manufactured to ASME and UN specifications, these vessels are used in various industrial and commercial applications. They are constructed using the finest range of raw materials including stainless steel, carbon steel, and nickel alloys. Also, several anti-corrosive solutions like zirconium and tantalum are used to provide the equipment with comprehensive protection from the atmosphere. Superior construction using best-in-class materials makes them a reliable choice for challenging applications.

Markets Served

Pressure vessels are reliable, safe, and the most economical solutions used to handle a wide gamut of high pressure gases and harsh liquids. High quality ASME pressure vessels are widely used across industries including:

Oil and Gas: Oil and gas industries utilize different types of pressure vessels to store, blend, heat, or cool gases and liquids to produce several products. The vessels for oil and gas industries are manufactured with a wide range of capacities, materials, and wall thicknesses. These air tight containers are used for demanding applications in offshore and onshore oil and gas production systems, natural gas processing, LNG liquefaction plants, and regasification terminals.

Chemical: Available in ferrous and non-ferrous metal options, the vessels provide superior functional performance when used for applications in the chemical industry. This equipment finds numerous applications in chemical plants involved in the production of polyolefins, caprolactam, melamine, and so on. Several makes and models of these vessels are used for mixing and storing raw materials for producing organic and inorganic chemicals. Furthermore, they are used to transport the end product safely to various facilities.

Petrochemical: Petrochemical industries are characterized by high operating temperatures, pressures and the presence of corrosive media. Due to these critical process conditions, there has been a great demand for pressure vessels of various kinds. They are used to handle methane, ethane, propane, butane, benzene, toluene, xylenes, and naphtha, among others. Resistance to fluctuating temperatures and pressures and longer service life with less maintenance are some of the advantageous factors that add to their favorability in petrochemical industries.

Pharmaceutical: Pressure vessels for the pharmaceutical industries are specially designed with a sterile design using quality components. Manufactured in compliance with national and international pharmaceutical standards, pharmaceutical vessels are largely used for storing sterile liquids and raw ingredients to make drugs of various kinds.

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We are a leading pressure vessel fabricator with a reputable industry standing of over 35 years
Since its 1977 inception, Didion’s Mechanical, a family owned and operated business, has charted a strong, stable growth story as an American Society of Mechanical Engineers (ASME) code certified shop. Our focus on quality has helped us build a veritable reputation in the market More »

Autoclaves are beneficial pressure chambers used in medical, chemical, and laboratory industries. They are used to carry different processes, which require non-ambient pressures and elevated temperatures. Read More »